Definition of: picket

(pik′it) noun
1. A pointed stick, tent peg, bar, fence paling, or stake.
2. Mil. A soldier or detachment of soldiers posted to guard a camp, army, etc.
3. A person stationed by a labor organization outside a place affected by a strike.
—v.t.
1. To fence or fortify with pickets or pointed stakes.
2. Mil. a To guard by means of a picket. b To post as a picket.
3. To station pickets outside of.
4. To tie to a picket, as a horse.
—v.i.
5. To act as a picket (def. 3). [<F piquet a pointed stake <piquer pierce]
—pick′et·er noun